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In lab, your instructor generates a standing wave using a thin string of length L = 2.10m fixed at both ends. You are told that the standing wave is produced by the superposition of traveling and reflected waves, where the incident traveling waves propagate in the +x direction with an amplitude A = 2.95mm and a speed vx = 10.5m/s . The first antinode of the standing wave is a distance of x = 35.0cm from the left end of the string, while a light bead is placed a distance of 17.5cm to the right of the first antinode. What is the maximum transverse speed vy of the bead? Make sure to use consistent distance units in your calculations.
An insulated Thermos contains 150cm3 of hot coffee at 83°C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as although..
What is the change in Marys potential energy. Find the final speed of the particle.
Find the action variable for a ball with speed v bouncing between two elastic walls a distance d apart. Find the angle variable
A 2.0 kg mass (mA) and a 5.50 kg mass (mB) are connected to a lightweight cord that passes over a frictionless pulley. The pulley only changes the direction of the force exerted by the rope.
The string has a breaking-point force of 45 N. Illustrate what is the largest value v can have without the string breaking?
A loudspeaker of mass 18.0kg is suspended a distance of h = 2.00m below the ceiling by two cables, What is the Tension T in each of the cables
An electron (charge -e) is projected horizontally into the space between two oppositely charged parallel plates. The electric field between the plates is 462N/C upward.
Draw vectors indicating the normal force. suppose that the weight of the femur is negligible compared to the applied downward force.
A 9.0-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m, What is the coefficient of kinetic friction, µk, of the surface from A to B
The magnitude of a force vector is 80.4 newtons (N). The x component of this vector is directed along the +x axis and has a magnitude of 72.6 N.
A 40 kg crate is pulled across the ice with a rope. A force of 100 N is applied at an angle of 30 degrees with the horizontal. Neglecting friction.
Consider a balloon filled with helium gas at room temperature (T = 289 K) and atmospheric pressure. Calculate the average de Broglie wavelength of the helium atoms
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